Version May 2024
| Primary tumor (T) | |||
| Male penile urethra and female urethra | |||
| T category | T criteria | ||
| TX | Primary tumor cannot be assessed | ||
| T0 | No evidence of primary tumor | ||
| Ta | Non-invasive papillary carcinoma | ||
| Tis | Carcinoma in situ | ||
| T1 | Tumor invades subepithelial connective tissue | ||
| T2 | Tumor invades any of the following: Corpus spongiosum, periurethral muscle | ||
| T3 | Tumor invades any of the following: Corpus cavernosum, anterior vagina | ||
| T4 | Tumor invades other adjacent organs (eg, invasion of the bladder wall) | ||
| Prostatic urethra | |||
| T category | T criteria | ||
| TX | Primary tumor cannot be assessed | ||
| T0 | No evidence of primary tumor | ||
| Ta | Non-invasive papillary carcinoma | ||
| Tis | Carcinoma in situ involving the prostatic urethra or periurethral or prostatic ducts without stromal invasion | ||
| T1 | Tumor invades urethral subepithelial connective tissue immediately underlying the urothelium | ||
| T2 | Tumor invades the prostatic stroma surrounding ducts either by direct extension from the urothelial surface or by invasion from prostatic ducts | ||
| T3 | Tumor invades the periprostatic fat | ||
| T4 | Tumor invades other adjacent organs (eg, extraprostatic invasion of the bladder wall, rectal wall) | ||
| Regional lymph nodes (N) | |||
| N category | N criteria | ||
| NX | Regional lymph nodes cannot be assessed | ||
| N0 | No regional lymph node metastasis | ||
| N1 | Single regional lymph node metastasis in the inguinal region or true pelvis (perivesical, obturator, internal [hypogastric] and external iliac), or presacral lymph node | ||
| N2 | Multiple regional lymph node metastasis in the inguinal region or true pelvis (perivesical, obturator, internal [hypogastric] and external iliac), or presacral lymph node | ||
| Distant metastasis (M) | |||
| M category | M criteria | ||
| M0 | No distant metastasis | ||
| M1 | Distant metastasis | ||
| Prognostic stage groups | |||
| When T is... | And N is... | And M is... | Then the stage group is... |
| Tis | N0 | M0 | 0is |
| Ta | N0 | M0 | 0a |
| T1 | N0 | M0 | I |
| T1 | N1 | M0 | III |
| T2 | N0 | M0 | II |
| T2 | N1 | M0 | III |
| T3 | N0 | M0 | III |
| T3 | N1 | M0 | III |
| T4 | N0 | M0 | IV |
| T4 | N1 | M0 | IV |
| Any T | N2 | M0 | IV |
| Any T | Any N | M1 | IV |
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